Heyyyy I wish I could help but I don’t know
Answer:
Wt= 0.73kJ, Wg=0.21kJ Wn= 0J
(B) Wf= 0.096kJ
Explanation:
See attachment below.
Answer:
The wavelength will be 33.9 cm
Explanation:
Given;
frequency of the wave, F = 1200 Hz
Tension on the wire, T = 800 N
wavelength, λ = 39.1 cm

Where;
F is the frequency of the wave
T is tension on the string
μ is mass per unit length of the string
λ is wavelength

when the tension is decreased to 600 N, that is T₂ = 600 N

Therefore, the wavelength will be 33.9 cm
Yeah science is hard. Hopefully you do good in it :)